He had a YouTube channel under his real name where you could hear his voice pre-hrt. His name is Brandon. He nuked the channel after 4chan found out about it some months ago. Maybe the clip is still around. Someonen on 4Chan had it saved as a WEBM and would post it in threads. Either way is the 4chan posts not enough proof? There are pre-trans photos of him too. The stuff he said on 4chan perfectly corresponds to stuff he's talked about in his streams.